CN202478304U - Safety protective sleeve for venous transfusion indwelling needle - Google Patents
Safety protective sleeve for venous transfusion indwelling needle Download PDFInfo
- Publication number
- CN202478304U CN202478304U CN2012201272508U CN201220127250U CN202478304U CN 202478304 U CN202478304 U CN 202478304U CN 2012201272508 U CN2012201272508 U CN 2012201272508U CN 201220127250 U CN201220127250 U CN 201220127250U CN 202478304 U CN202478304 U CN 202478304U
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- Prior art keywords
- block
- protective sleeve
- sleeve body
- needle
- safety protective
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- Expired - Lifetime
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Abstract
The utility model relates to a safety protective sleeve for a venous transfusion indwelling needle. The safety protective sleeve comprises a tubular protective sleeve body, wherein a wedge-shaped cut hole is formed on the tube wall at the front end of the protective sleeve body; a locking groove for positioning the root part of a fin of a puncture needle is arranged near the rear end of the protective sleeve body; a guide groove channel formed in an axial gap cutting way is formed between the locking groove and the wedge-shaped cut hole; a stop block for blocking the gap is arranged in a position close to the front end of the guide groove channel; and the distance between the stop block and the locking groove is less than that between the root part of the fin of the puncture needle and the tip of the puncture needle. As the stop block is provided and the distance between the stop block and the locking groove is less than that between the root part of the fin of the puncture needle and the tip of the puncture needle, a needle tube can be stopped in the safety protective sleeve by the stop block when a puncture assembly slides in the safety protective sleeve or is received in the safety protective sleeve. Therefore, the head of the puncture needle is prevented from exposing from the gap in the guide groove channel, and the safety is improved.
Description
Technical field
This utility model relates to a kind of venous transfusion remaining needle safety protective cover.
Background technology
Remaining needle is the transfusion apparatus that substitutes traditional disposable infusion needle, with the misery that reduces patient's repeated puncture with alleviate medical worker's nursing work load, extensive use clinically at present.Its structure generally comprises piercing assembly, plug, threeway catheter block and the inlying catheter of being made up of needle tubing seat and piercing needle.Wherein, the needle tubing seat is provided with puncture needle wings, and the threeway catheter block includes first interface, second interface, transfusion interface; The inlying catheter sealing is fixed in second interface front end; Wherein first interface, second interface and inlying catheter axially connect and constitute the active syringe needle passage of syringe needle, and described transfusion interface becomes oblique setting with first interface, second interface, constitute infusion channel; Plug is fixedly installed in the threeway catheter block, and the piercing needle in the piercing assembly passes plug and inserts in the inlying catheter.Thrust vein through piercing needle guiding inlying catheter during use, extract piercing assembly subsequently, the arteriovenous infusion medicinal liquid that after this utilizes inlying catheter to continue to the patient.Because piercing assembly is disposable, for fear of needle sting people in carrying out garbage disposal or recycling process, causes the secondary cross infection, all can enclose safety protective cover on the existing venous transfusion remaining needle used remaining needle is protected.Existing safety protective cover is generally a kind of pipe shape member; Length is longer than piercing assembly; Endoporus and needle tubing seat matched in clearance, the inner chamber of safety protective cover constitutes the piercing assembly container cavity, and the tube wall of safety protective cover one end is provided with wedge-formed incision; Be provided with the locked groove that constitutes by near window quadrate, that have the stopping structure near the relative other end of safety protective cover; Be provided with the guide channel that axial joint-cutting constitutes between locked groove and the wedge-formed incision and be connected, an end and threeway catheter block that safeguard protection is arranged with wedge-formed incision removably connect, and the puncture needle wings on the needle tubing seat is passed guide channel and is exposed at outside the safeguard protection casing wall; When accomplishing puncture; Hands is pinched puncture needle wings and puncture needle wings is blocked along guide channel post-tensioning to locked groove, make needle tubing seat and piercing needle all hide to the inner chamber of safety protective cover be in the piercing assembly container cavity, thereby prevent the needle sting people.But still there is following defective in existing safety protective cover: 1, owing to the existence of wedge-formed incision and guide channel, piercing needle still might expose from the slit of guide channel; If 2 reduce the width of guide channel in order to prevent piercing needle from from the slit of guide channel, exposing, guide channel will be stepped up puncture needle wings and be very tight when causing the withdraw of the needle; 3, during retained needle puncture, need withdraw of the needle 3-4mm, put inlying catheter again, but existing protective sleeve can't see how many withdraws of the needle moved back.
Summary of the invention
The purpose of this utility model is the venous transfusion remaining needle safety protective cover that provides a kind of piercing needle can from the slit of guide channel, not expose for the deficiency that overcomes prior art.
To achieve these goals; The technical scheme that this utility model adopts is: a kind of venous transfusion remaining needle safety protective cover; Comprise pipe shape protective sleeve body, the protective sleeve body length is longer than piercing assembly, and the tube wall of protective sleeve body front end is provided with wedge-formed incision; Be provided with the locked groove of localised puncture pin fin root near the rear end; Be provided with the guide channel that axial joint-cutting constitutes between locked groove and the wedge-formed incision and be connected, it is characterized in that: the position near said guide channel front end is provided with the block that blocks the slit, and said block is apart from the distance of the locked groove distance less than puncture needle wings root to needle tip.
Compared with prior art; This utility model is owing to be provided with block; And block is apart from the distance of the locked groove distance less than puncture needle wings root to needle tip, so in the piercing assembly process of in safety protective cover, sliding or when taking in to safety protective cover, needle tubing all can be by the block retaining in safety protective cover; Stop the possibility that piercing needle exposes from the slit of guide channel, improved safety.And owing to be provided with block, the slit of guide channel can be provided with widelyer slightly relatively, reduces friction, makes things convenient for the slip of puncture needle wings.
As the further setting of this utility model, said block and the split of protective sleeve body are provided with, and said block detachably is fixedly connected with the protective sleeve body.Can make things convenient for production and assembling like this.
As further being provided with again of this utility model; Said block is the opening annular component of C shape; The external diameter of block and protective sleeve body internal orifice dimension match, and the outer rim of said block is provided with several axially outstanding fixture blocks, or match at internal diameter and this body diameter of protective sleeve of block; The inner edge of said block is provided with several axially outstanding fixture blocks; The relevant position of said protective sleeve body tube wall is provided with the hole clipping that matches with said fixture block, and said block matches through fixture block and hole clipping and constitutes said detachable the fixed connection, and the opening of said block is avoided the slit of guide channel.The block of this structure, simple in structure, ease of assembly again.
As further being provided with again of this utility model, the tube wall of said protective sleeve body is provided with observation window, and the needle tubing seat afterbody of piercing assembly is corresponding under the position of said observation window and the original state that is in wherein.Owing on tube wall, be provided with observation window, when putting inlying catheter again, can see needle tubing seat afterbody through observation window, therefore can know the distance of seeing the withdraw of the needle.
To combine accompanying drawing and specific embodiment that this utility model is further described below.
Description of drawings
Accompanying drawing 1 is this utility model protective sleeve body specific embodiment structural representation;
Accompanying drawing 2 is this utility model protective sleeve body specific embodiment opposite side structural representation;
Accompanying drawing 3 is this utility model block specific embodiment structural representation;
Accompanying drawing 4 is this utility model specific embodiment structural representation;
Accompanying drawing 5 is the distolateral topology view of this utility model specific embodiment;
Accompanying drawing 6 is the STRUCTURE DECOMPOSITION figure of the venous transfusion remaining needle of application safety protective sleeve;
Accompanying drawing 7 is the structural representation of the venous transfusion remaining needle of application safety protective sleeve;
Accompanying drawing 8 is for using the venous transfusion remaining needle opposite side structural representation of safety protective sleeve.
The specific embodiment
Like Fig. 1, shown in 2, venous transfusion remaining needle safety protective cover comprises pipe shape protective sleeve body 1 and block 2, and protective sleeve body 1 length is longer than piercing assembly 3; Protective sleeve body 1 endoporus and needle tubing seat 302 matched in clearance; The inner chamber of protective sleeve body 1 constitutes the piercing assembly container cavity, and near the tube wall protective sleeve body 1 front end (end that promptly is connected with the threeway catheter block) is provided with the draw-in groove 101 that matches with threeway catheter block 303 upper protruding blocks, and the protective sleeve body 1 front end mouth of pipe is provided with wedge-formed incision 102; Puncture needle wings 301 roots get in the guide channel 103 during with ease of assembly; Be provided with locked groove 104 near the relative other end of protective sleeve body 1, be provided with the guide channel 103 that axial joint-cutting constitutes between locked groove 104 and the wedge-formed incision 102 and be connected, locked groove 104 is shape and the identical slotted eye of puncture needle wings 301 root sections; During this practical implementation is upright is rectangle; Said locked groove 104 is over against guide channel 103 tail ends, and guide channel 103 tail end both sides are two prolongation sheets 107 that laterally arrange, and the slit is left in prolongation sheet 107 both sides makes afterbody have certain opening and closing leeway; The rear wedgewise of guide channel 103 is less than the thickness formation stopping structure of puncture needle wings 301 roots.Block 2 is arranged on the position near said guide channel 103 front ends; And block the slit of guide channel 103; Said block 2 is apart from the distance of locked groove 104 distance less than puncture needle wings 301 roots to needle tip; Can guarantee that like this needle tubing all can make piercing assembly 3 be retracted to distance enough in the piercing assembly container cavity but also should leave between block 2 and the locked groove 104 by block 2 retainings in safety protective cover.Said block 2 can be to be wholely set with protective sleeve body 1, but production and assembling for ease, preferred split setting.In this specific embodiment, said block 2 is the opening annular component of C shape, and being provided with of C shape opening can make block 2 that certain elasticity ease of assembly is arranged; The internal diameter of block 2 and protective sleeve body 1 crest clearance match, and the inner edge of said block 2 is provided with several axially outstanding fixture blocks 201,2-4 usually along circumference; Be advisable with 3; And the one-tenth uniform distribution, the relevant position of said protective sleeve body 1 tube wall is provided with the hole clipping 105 that matches with said fixture block 201 gaps, and said block 2 is matchedly connected on protective sleeve body 1 outer wall through fixture block 201 and hole clipping 105; Constitute said detachable fixed connection, the opening of said block 2 is avoided the slit of guide channel 103.But preferably the outer rim at said block 2 is provided with several axially outstanding fixture blocks 201, and the external diameter of block 2 and protective sleeve body 1 internal orifice dimension are matchedly connected in protective sleeve body 1 endoporus, like Fig. 1, shown in 3.In order to know the distance of seeing the withdraw of the needle, on the tube wall of said protective sleeve body 1, can also be provided with observation window 106, the position of said observation window 106 is corresponding with needle tubing seat 302 afterbodys that are in the following piercing assembly 3 of original state (before promptly using) wherein.The venous transfusion remaining needle concrete structure of using the safety protective sleeve is referring to Fig. 6-8.
Claims (5)
1. venous transfusion remaining needle safety protective cover; Comprise pipe shape protective sleeve body; The protective sleeve body length is longer than piercing assembly; The tube wall of protective sleeve body front end is provided with wedge-formed incision, is provided with the locked groove of localised puncture pin fin root near the rear end, is provided with the guide channel that axial joint-cutting constitutes between locked groove and the wedge-formed incision and is connected; It is characterized in that: the position near said guide channel front end is provided with the block that blocks the slit, and said block is apart from the distance of the locked groove distance less than puncture needle wings root to needle tip.
2. venous transfusion remaining needle safety protective cover according to claim 1 is characterized in that: said block and the split of protective sleeve body are provided with, and said block detachably is fixedly connected with the protective sleeve body.
3. venous transfusion remaining needle safety protective cover according to claim 2; It is characterized in that: said block is the opening annular component of C shape; The external diameter of block and protective sleeve body internal orifice dimension match, and the outer rim of said block is provided with several axially outstanding fixture blocks, and the relevant position of said protective sleeve body tube wall is provided with the hole clipping that matches with said fixture block; Said block matches through fixture block and hole clipping and constitutes said detachable the fixed connection, and the opening of said block is avoided the slit of guide channel.
4. venous transfusion remaining needle safety protective cover according to claim 2; It is characterized in that: said block is the opening annular component of C shape; The internal diameter of block and this body diameter of protective sleeve match, and the inner edge of said block is provided with several axially outstanding fixture blocks, and the relevant position of said protective sleeve body tube wall is provided with the hole clipping that matches with said fixture block; Said block matches through fixture block and hole clipping and constitutes said detachable the fixed connection, and the opening of said block is avoided the slit of guide channel.
5. venous transfusion remaining needle safety protective cover according to claim 1, it is characterized in that: the tube wall of said protective sleeve body is provided with observation window, and the needle tubing seat afterbody of piercing assembly is corresponding under the position of said observation window and the original state that is in wherein.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201272508U CN202478304U (en) | 2012-03-29 | 2012-03-29 | Safety protective sleeve for venous transfusion indwelling needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201272508U CN202478304U (en) | 2012-03-29 | 2012-03-29 | Safety protective sleeve for venous transfusion indwelling needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202478304U true CN202478304U (en) | 2012-10-10 |
Family
ID=46952770
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201272508U Expired - Lifetime CN202478304U (en) | 2012-03-29 | 2012-03-29 | Safety protective sleeve for venous transfusion indwelling needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202478304U (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103285458A (en) * | 2013-05-31 | 2013-09-11 | 浙江康德莱医疗器械股份有限公司 | Safety protective sleeve |
| CN103394140A (en) * | 2013-08-08 | 2013-11-20 | 靳海 | Arterial/venous channel protector |
| CN103768680A (en) * | 2012-10-24 | 2014-05-07 | 上海轮昌机电科技有限公司 | Safe remaining needle |
| CN103785073A (en) * | 2014-01-27 | 2014-05-14 | 河南科技大学 | Intravenous infusion needle |
| CN104645447A (en) * | 2015-01-29 | 2015-05-27 | 福建省百仕韦医用高分子股份有限公司 | Indwelling needle with double-slit protection sleeve |
| CN104707208A (en) * | 2015-01-29 | 2015-06-17 | 福建省百仕韦医用高分子股份有限公司 | Remaining needle with unilateral-seam protective sleeve |
| WO2016179795A1 (en) * | 2015-05-12 | 2016-11-17 | 福建省百仕韦医用高分子股份有限公司 | Open catheter needle with slotted protection sleeve |
| WO2017088675A1 (en) * | 2015-11-23 | 2017-06-01 | 上海金塔医用器材有限公司 | Needle puncture device |
| CN107281594A (en) * | 2016-04-12 | 2017-10-24 | 上海金塔医用器材有限公司 | Injection needle |
| CN107764302A (en) * | 2017-11-29 | 2018-03-06 | 福建农林大学 | The protector for sensor and its application method of a kind of Telescopic detachable |
| CN109224192A (en) * | 2018-09-28 | 2019-01-18 | 江苏治宇医疗器材有限公司 | A kind of safety shield for single wing transfusion syringe |
| US11020569B2 (en) | 2015-11-23 | 2021-06-01 | Gemtier Medical (Shanghai) Inc. | Needle puncture device |
-
2012
- 2012-03-29 CN CN2012201272508U patent/CN202478304U/en not_active Expired - Lifetime
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103768680A (en) * | 2012-10-24 | 2014-05-07 | 上海轮昌机电科技有限公司 | Safe remaining needle |
| CN103285458A (en) * | 2013-05-31 | 2013-09-11 | 浙江康德莱医疗器械股份有限公司 | Safety protective sleeve |
| CN103394140A (en) * | 2013-08-08 | 2013-11-20 | 靳海 | Arterial/venous channel protector |
| CN103785073A (en) * | 2014-01-27 | 2014-05-14 | 河南科技大学 | Intravenous infusion needle |
| CN104645447A (en) * | 2015-01-29 | 2015-05-27 | 福建省百仕韦医用高分子股份有限公司 | Indwelling needle with double-slit protection sleeve |
| CN104707208A (en) * | 2015-01-29 | 2015-06-17 | 福建省百仕韦医用高分子股份有限公司 | Remaining needle with unilateral-seam protective sleeve |
| WO2016179795A1 (en) * | 2015-05-12 | 2016-11-17 | 福建省百仕韦医用高分子股份有限公司 | Open catheter needle with slotted protection sleeve |
| WO2017088675A1 (en) * | 2015-11-23 | 2017-06-01 | 上海金塔医用器材有限公司 | Needle puncture device |
| US10265467B2 (en) | 2015-11-23 | 2019-04-23 | Gemtier Medical (Shanghai) Inc. | Needle device |
| US11020569B2 (en) | 2015-11-23 | 2021-06-01 | Gemtier Medical (Shanghai) Inc. | Needle puncture device |
| CN107281594A (en) * | 2016-04-12 | 2017-10-24 | 上海金塔医用器材有限公司 | Injection needle |
| CN107764302A (en) * | 2017-11-29 | 2018-03-06 | 福建农林大学 | The protector for sensor and its application method of a kind of Telescopic detachable |
| CN107764302B (en) * | 2017-11-29 | 2024-05-28 | 福建农林大学 | Telescopic detachable sensor protection device and use method thereof |
| CN109224192A (en) * | 2018-09-28 | 2019-01-18 | 江苏治宇医疗器材有限公司 | A kind of safety shield for single wing transfusion syringe |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121010 |